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(N M d 1 2 Sheets-Sheet 1.

M. VAN BUR-ENETHRIDGE. HEEL NAILING MACHINE. No. 285,596. Patented Sept.25, 1883.

(No Model.) 2 SheetsSheet 2. M. VAN BUREN ETHRIDGB.

. HEEL NAILING MACHINE. No. 285,596. Patented Sept. 25, 1883.

N. PETERS. Phmwulhographsr. Wadunglan. 0.0.

' T aZZ whom'it may concern:

UNITED STATES PATENT OFFICE.

TO THE ETHRIDGE HEELING MACHINE COMPANY, OF SAME PLACE.

HEEL-NAILING MACHINE.

SPECIFICATION forming part of Letters Patent No. 285,596, datedSeptember 25, 1883. Application filed June 13,1883. No moflell Be itknown that I, MARTIN VAN BUREN ETHRIDGE, of Boston, in the county ofSuffolk and State of Massachusetts, have invented an improved machinefor nailing heels on boots and shoes and piercing said heels preparatoryto applying the same to the shoe or boot sole, of which the following isa specification.

My invention relates to an improved shoe and boot heeling machine; andit consists in an upright frame carrying two horizontal shafts withattached gears, cam, rocker-levers, vertical plunger, last-jack, andtable, the various functions and construction of which are hereinaftermore fully described by reference to the drawings forming a part of thisspecification, in which. v

Figure 1 illustrates a perspective View of my improved heeling-machinefrom the rear, Fig. 2 being an elevation also of the rear. Fig. 3 is adetailed view of the plunger in part sectioned. Fig. 4 shows enlargedView of cam and connecting parts. Fig. 5 represents the upper part orhead of machine in section. Fig. 6 is a face plan of the adjustableheel-plates. Fig. 7 indicates the attached mechanism for preparing theheels. Fig. 8 is a side elevation of the same as attached to the head ofmachine. Fig. 9 is a front elevation of the plunger and lever-hammeractuating the same.

Referring to the drawings, A A is the supporting-frame, secured to andupholding the head B of the machine, said head projecting in front toform a table, 0, which supports the last-jack 1), moving in a horizontaldirection forward and backward in a suitable cut groove in its bed E,and secured in its proper position directly under the heel-plate by thesetscrew F. A vertical movement is also imparted to said last-jackthrough the medium of the screw G and nut H, rotated by thefinger-pieces I I, and depressed or raised to the vertical scale ofmeasurement J, cut in the inner walls of the guide-brackets K K, whichbrackets serve also to confine within a proper limit the movement of thelast-jack bed E.

Above the table 0, and integral with the upper portion of the head B,are two project? ing arms or brackets, LL, vertically arranged,receiving and supporting the plunger M, the lower end of which has adovetailed recess, N,

Fig. 9, for the reception of an adjustable perforated heel-drivingplate, 0, said plate being held in position by the spring P, attached tothe plunger M, entering suitable recesses, 8 8, in the side of saidplate. The upper part of the plunger M is reduced in'circumference, soas to form at the base of the smaller portion two convex or roundedshoulders, RR. Said convex surfaces are to receive the blow from theoscillating forked lever-hammer S, the opposing surface of which is alsocurved in a manner reversed to the shoulders R R to in sure a rockingcontact of the parts, as shown at T, Fig. 1'. To secure the uniformmovement of the plunger M in the brackets L L, that portion of itssmaller circumference in juxtaposition to the shoulders R R is squaredto receive the forked end of the lever'hammer S, which'latter isfulcrumed in the machine head at U. The oscillating movement is given tosaid hammer S by the upright ball-jointed lever V, secured to thelever-hammer at WV, and actuated vertically by the cam X on the shaft Y.Interposed between the cam and upright lever V is a socket-bar, V,receiving the ball-j oint of said lever, and loosely secured at itsopposite end to the shaft Z. The cam X has a horizontal sliding motionon its shaft Y, and is made operative by the throw of the shipper a,which is worked by the side foottreadle, 1), its rod 0 communicatilfgwith the shipper a. \Vhen the cam X is inoperative, it is thrown to theleft on its shaft through the action of a spiral spring, 0, surroundingthe right end of the cam-shaft, inclosed in'a recess within the sleeveof said cam. At the right of the cam, upon its shaft Y, is keyed thegear if, rotating the cam, and to which power is transferred through thepinion-gear g, shaft 71, andbelt-pulley The central foot-treadle, j,communicates with the rod 16, to whose upper end is secured a shortrocker-lever, Z, Fig. 5, fulcrumed to the head B at m, and operating ina chamber in the lower bracket, L. The free end of this rocker-lever, a,terminates in a ball or globe,

and operates against the converging walls of a chamber, 1;, in theplunger M, to raise said plunger preparatory to placing thenail-prepared heel under the heel-plate 0 before the operation ofnailing the heel upon the shoe or the nails to be inserted by hand.

boot. The facev of the adjustable heel-plate O, I cally to the requiredheight, determined by the Fig. 6, is drilled with a row of holes, 3,conforming to the shape of the heel, to a depth corresponding with thethickness, or slightly less, of the heel tread-lift. This permits thenails to remain above the surface (after the first blow of the plunger)for the second operation of the'cam and subsequent blow of said plunger,which secures the tread-lift and completes the process of heeling. Theback of the heel-plate 0 extends beyond the floor or bottom of theplunger, and is thinned from the face, so as to form a projectingflange, 4, which has a beveled groove centrally in its lower face,parallel with its sides, to receive a detachable plate, 5, secured inits position by the set-screw 6. Said plate has a polished level"surface to secure the tread-lift without defacement. The heel-breastguide 7 limits the movement of the tread-lift, and theindenrations 8 8receive the holding-spring P on the plunger M.

Upon one side of the table C, preferably the right, is attached themechanism for piercing the leather heels, (see Fig. 7,) wherein thebracket q is rigidly secured to the head B of the machine by the bolts1- r. The upper part of the bracket has a depressed bed or dovetailedgroove receiving the movable plate 8, carrying the gang of awls 'u. Thelower end of said plate is pinned to the arm of an eccentric, t,rotating on the stub-shaft u, and communicating motion to said awlsthrough the medium of the gears 10 and x.

In the process of preparing the leather heels the same are placed by theworkman upon the shelf 1, forming a part of the bracket q. The awls 12then descend through holes in the plate or shelf z, which is closelyfitted in grooves in each inner side of said bracket q, so as to beremovable, the number of holes in the shelf a corresponding with thenumber of awls in the awl-plate, which is also removable, and the heelis pierced for the reception of the nails. In the ascending movement ofthe awls the heel is drawn against the under side of the shelf 2, whichresistance frees the heel from the awls, allowing it to be removed,ready for For the greater accuracy in adjusting the leather heelcentrally'upon the shelf 1, two suitable curved flat springs, 9 9, Fig.8, are secured by screws to each front edge of the bracket q. Saidsprings are of thin flexible metal, in width proportionate to theleather heel, and whose rear and free ends are curved inwardly,conforming to the shape of the sides and back of said heel, and acting,in conjunction with the rear stop piece or guide, 2, forming a part ofthe shelf to quickly and accurately receive the heel in a properposition.

The operation of my improved heeling-machine is as follows: The workman,standing in front of the table, raises the last-jack vertiscale upon theguide-brackets. The last-jack is now moved horzontally toward theoperator, the shoe adjusted over the last, the plunger is raised byfoot-pressure applied to treadle j,

the heel-pile being held in position while the" jack is run under saidplunger, which, being released, falls upon the heel-pile, and by itsweight holds said pile in position. Foot-power is now applied to sidetreadle, 1), connecting with the shipper, throwing the cam to itsworking position, as depicted in Fig. 1, and bringing the hammer downupon the plunger, forming the first stage i in nailing the heel.Foot-pressure is now transferred to treadle j, the cam becomesinoperative, while the plunger is raised to its normal position. Theauxiliary heel-plate 5 is now drawn forward by hand over the heel,receiving the tread-lift, ad j usted quickly by hand against its guide,press ure is again applied to treadle 2;, operating the cam and theplunger, giving the second and final blow, and completing the operationof heeling.

Having described the operation and construction of my improvedinvention, what I claim is 1. I11 an organized machine for nailing andpricking heels, the head B, provided with the oscillating hammer S, andoperating as described, the plungerM, the adjustable heelplate 0, thelast-jack D, and gaging-rules J operating substantially as and for thepurpose described.

2. In a heel-machine, the oscillating hanr mer S, having the duplexconvex shoulders T T, combined with the driver M, as herein described.

3. In a heel-machine, the plunger M, provided with duplexreceiving-shoulders R R, in combination with the oscillating hammer S,the ball-jointed lever V, and socket-bar V, as specified.

4. The adjustable perforated heel-plate .O, in combination with adetachable drivingplate, 5, and gaging-spring I for the purposespecified.

5. In an organized heeling-inachine, the detachable bracket q, incombination with the re ciprocating awl-ca-rrying plate 8, actuated bythe eccentric t and gears 00 and w, substantially as and for the purposeset forth.

6. In aheelmachine, the vertical plunger M, combined with therocker-lever Z, actuated by the rod K and ibottreadle j, to hold theheelpile and heel tread-lift, as herein described.

In testimony whereof I have signed this specification in presence of twosubscribing witnesses.

MARTIN VAN BUREN E'IHRIDGE.

' \Vitnesses:

WM. H. MILLER, S. D. OSBORNE.

IIO

